Abstract
We investigated whether a cortical potential exists, that is similar to the Bereitschaftspotential, preceding postural adjustment followed by voluntary ballistic rising on tiptoe in 10 healthy subjects. On the basis of the electromyogram (EMG) activities of the soleus muscle, the onsets of the premotion silent period (PMSP) and EMG discharge were determined. The negative potentials associated with a voluntary rise-on-tiptoe movement with respect to EMG onset were similar to the readiness potential associated with voluntary foot movement. The slopes of the slow negative potential associated with the PMSP onset were significantly more negative than those of the potential associated with rise-on-tiptoe movement, particularly over the frontal electrode positions. The results suggest that a cortical potential precedes postural adjustment that is followed by voluntary rising on tiptoe.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Electroencephalography and Clinical Neurophysiology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
